The correct answer is A. Input.
An input device is a piece of equipment that receives information from a user and sends it to the computer. Some common input devices are keyboards, mice, and touchscreens.
A CPU, or central processing unit, is the main part of a computer that carries out instructions. It is responsible for processing data and controlling the other parts of the computer.
Memory is a storage device that stores data and instructions that the CPU needs to access quickly. There are two main types of memory: RAM (random access memory) and ROM (read-only memory). RAM is temporary memory that is erased when the computer is turned off.
ROM is permanent memory that is not erased when the computer is turned off.Storage is a device that stores data and instructions that the CPU does not need to access quickly. There are many different types of storage devices, including hard drives, solid-state drives, and optical drives.
I hope this helps!